Dernieres nouvelles du SCDB
- Migratory birds are a critical link in the global web of life, that not only capture our imagination but connect different ecosystems and species.
- This year's World Tourism Day theme, 'Tourism and jobs: A better future for all', serves to highlight the critical role tourism, and ultimately nature, plays in job creation.
- The film highlights the importance of nature in tackling climate change, calling for the need to protect, restore and fund nature and mobilizing attention to scale nature-based solutions.
Morphometric and genetic characterization of sympatric population of Clarias gariepinus and C. aguillaris from Senegal
|Download||Agnèse et al 1997 Clarias gariepinus et C anguillaris.pdf (French, 285 KB)|
|View||Open in browser|
|Upload date||05 Jan 2016|
|#||Language||File name||Contributor||Upload date||Size||Content type|
|1||French||Agnèse et al 1997 Clarias gariepinus et C anguillaris.pdf (current)||Célestin Mizani||05 Jan 2016||285 KB||application/pdf|
A sample of African Clarias catfishes from the Senegal River was studied using morphometry, allozyme variation, microsatellites and RFLPs of mitochondrial DNA. They all confirmed the
presence of two species, C. gariepinus and C. anguillaris. The two species were closely related genetically and no diagnostic loci were found in allozymes and microsatellites studies. Two of
the 11 haplotypes of mtDNA observed were shared by both species. Three of the four assays (morphometry, allozymes and microsatellites) allowed a precise characterization of both. One
specimen occupied an intermediate position in the analysis of the data; it was considered an F1 hybrid whose possible origin is discussed.